Gomery



3 Sheets-Sheet 1. F. L. MONTGOMERY. ROLLER COTTON GIN.

(No Model.)

MMM L6 A 770/?NE YS.

3 Sheets-Sheet 2.

(No Model.)

F. L'. MONTGOMERY.

ROLLER COTTON GIN. No. 499,560. Patented June 13, 1893.

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JV XJ Q f.fm\ L 1 f2 WITNESS/5S.' /NVENTOH @M m ATTORNEYS.

UNITED STATES PATENT OFFICE.

FREDERICK L. MONTGOMERY, OF NEW YORK, N. Y.

ROLLER COTTON-GIN.

SPECIFICATION formingrpart of Letters Patent No. 499,560, dated June 13, 1893. Application filed November 17, 1892. Serial No. 452,322- (No model.)

To @ZZ whom t may concern:

Be it known that I, FREDERICK L; MONT- GOMERY,of the city, county, and State of New York, have invented a new and Improved Roller Cotton-Gin, of which the following' is a full, clear, and exact description.

The object of the invention is to provide a new and improved roller cotton gin, which is simple anddurable in construction, very effective in operation and arranged to quickly and thoroughly strip the seed from the lint of any grade cotton, without danger of tearing or pullingV the fibers apart.

The invention consists of a drum, and two rollers held in peripheral contact with the drum, and of which oney serves as a knife roller to strip the seed from the lint and the other serves to hold the lint to the drum while the seed is removed.

The invention also consists of certain parts and details, and combinations of the same, as will be hereinafter described and then pointed out in the claims.

Reference is to be had to the -accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a plan view of theimprovement with parts in section. Fig. 2 is a sectional side elevation of the sameon the line 2 2 of Fig. l. Fig. 3 is an end view of the same with parts broken out. Fig. 4 is a rear side elevation of the machine. Fig. 5 is an enlarged front view of the knife roller and its bearings with parts in section. Fig. 6 is a transverse section of the same on the line 6 6 of Fig.5. Fig. 7 is a similar view of part of the same on the line 7-7 of Figf. Fig. S is a side elevation of one of the bearings for the knife rollers. of the bearings for the knife rollers; and Fig. lO is a side elevation of the gearing for driving the knife rollers.

The improved roller cotton gin is provided with asuitably-constructed frame A, on which is supported a hopper B, containing the cotton to be ginned, the cotton passing onto a feed drum C extending into the bottom of the said hopper and secured on a shaft C journaled in suitable bearings on the main frame A. On one end of the shaft C is se- Fig. 9 is a sectional elevation of onel cured a pulley C2, over which passes a crossed belt O3, .also passing over a pulley O4 secured on the main driving shaft D provided with the usual fast and loose pulley E connected by belt with suitable machinery for imparting a rotary motion to the said shafts D and C. The feed drum C has the usual roughened peripheral surface to properly feed the cotton from the hopper B.

In the front of the hopper B is formed an opening B', directly above the periphery of the drum O, so that the cotton can readily pass out of the hopper to be carried by the revolving drum C onto a transverselyextending feed table F inclined rearwardly and discharging at its lower end onto the periphery of the ginning roller G, secured on the main driving shaft D. A second feed table F is arranged transversely between the ginning roller G and the drum C, so as to prevent any cotton from being carried to one side and not onto the ginning roller G.

The ginning roller G is provided with a solid core G made of wood or other suitable material, and having a covering G2 of leather, canvas or other elastic material. On the periphery of this covering G2 are held two rollers H and H of which the roller H is a knife roller to separate the seed from the lint, while the other roller H located below the first roller H, but close to the same, serves to press the lint to the drum covering G2 during the time the seed is removed by the other roller H.

The rollers H and H are made in the shape of shafts of small diameter extending the entire width of the ginning roller G, and each roller bearing is formed in sections J fitted to slide in a recess J 2 extending transversely in a bar J3 yieldingly mounted and adapted to be raised and lowered, as hereinaftermore fully described.

Eachsection J of the bearing J is pressed on at its underside by a spring J4 resting with its ends on the said bearing and engaged at its middle and at the under side byaset screw J 5 screwing in the bar J 3.' This set screw serves to increase or diminish the tension of the spring J 4 to press the section J with more or less force against the knife roller H or H', so as to hold the latter in proper contact with the ginning roller G. The rollers H must TOO necessarily be small to prevent the seed from passing through, and as a small roller is liable to spring it must be supported throughout its length. As shown in Figs. 6 and 7, a hard rubber block or plate J may be interposed between the spring J4 and the respective section J' for the roller H', to make the latter less yielding than the roller H.

The rollers H and H' are journaled in boxes J7 and JS formed on the ends of the bar J3. The boxes J7 and J2 are formed on their under side with screw threads, each engaged by a screw K formed on a sleeve K fitted to slide over a hollow pin K2 formed on the head K5 of a screw K4, screwing in a nut K5 attached to or formed on the legs of the frame A. A spring K6 set in the hollow pin K2 presses on thesleeve K so as to force the latter upwardly with the bar J 3 to hold the rollers H and H' in peripheral contact with theginning roller G. Now, it will be seen that by turning the screws K4 the tension on the springs K6 is increased or diminished,aocord ing to the direction in which the screws are turned, so that the bearing J for the rollers H and H', is forced up with more or less force to hold the rollers H and H' with more or less pressure in contact with the peripheral surface of the ginning roller G.

It is understood that the rollers H and H' are supported between the boxes J7 and J 8, on the bearing sections J', so that each roller is prevented from spreading and is held uniformly against the peripheral surface of the ginning roller Gthroughout the entire length. The enlarged end of the roller H passing through the box JS carries apinion L in mesh with a gear wheel L journaled on a suitable bracket L2 held adjustably on the main frame A, as illustrated in Fig. 4. This gear wheel L is in meshv with an internal gear wheel N secured on the main driving shaft E, so that when the latter is rotated the internal gear wheel N will revolve the gear wheel L', and the latter the pinion L, so as to turn the roller H in the same direction in which the ginning roller G revolves. The gearing is so proportionedL that the roller H revolves at a much higher rate of speed than the ginning roller Gto readily separate the seed from the lint, when the latter is drawn downward between the drum and roller H. The other roller H is, geared with the roller H and in order to revolve the second roller in the proper direction, a gear wheel L3 on the roller H meshes into an intermediate gear wheel L4 held on the bearing J 7and gearing into the gear wheel L5 secured on the roller H'. See Figs. 5 and 10. As shown in Fig.5 the intermediate gear wheel L4 is sufficiently wide to engage both gear wheels L2 andL.

In front of the roller H directly below the lower feed table F is arranged a discharge table I, extending downwardly and forwardly, so that the seed removed from the lint bythe knife roller H passes over the feed table F' onto the said discharge table I to be delivered to one side of the machine. The lint adhering to the drum covering G2 after leaving the rollers H, H', after the seed is stripped olf, is finally removed from the said drum covering G2 by a stripper cylinder O, acting as a brush, and provided with a core O secured 011 a transverselyextending shaft O2, journaled in suitable bearings on the main frame A. One end of this shaft O2 carries a pulley O3, over which passes a belt O4, also passing over a pulley O5 secured on the main driving shaft D. On the core O' of the stripper cylinder O are secured transversely extending radial blades O6 made of vsheet metal or other suitable material and adapted to reach with their outer edges, close to the peripheral ksurface of n the ginning roller G, to take the lint off the said stripper cylinder when the machine is in operation.

The operation of the machine is as follows: When the main shaft D is rotated, the feed drum C revolves in the directionof the arrow a', the ginning roller G inthe direction of the arrow b', and the stripper cylinder O in the direction of the arrow c'. Now, the cotton from the hopper B is carried by the feed drum C onto the feed tables F and F' andonto the revolving ginning roller G, which carries the cotton downward and between it and the roller H which prevents the seed from passing through so that the seed is finally stripped off from the lint and passes over thedischarge table I down to one side of the machine. During this stripping operation of the seed the second roller H' presses the lint at its thickest part onto the ginning roller` G, the roller H, then being at the thinnest part of the cotton, that is on the end carrying the seed, as will be readily understood by reference to Fig. 6. The lint still adhering to the covering G2 is carried upward and removed by the blades O6 of the stripper cylinder O, which latter causes the lint to drop in a continuous fleece into a suitable box P extending rearwardly from the main frame A.

As illustrated in Fig. 6, each bearing section J engages about one halfof the roller H or H', so that by the several sections, the roller is held always in proper position, especially as each section can bel adjusted by the correspondin g set screw J 5 as above described. By this arrangement, the seed is prevented from passing between the ginningroller Gand roller H, without being removed, as the roller can be adjusted to press uniformly with more or less force against the peripheral surface of theginningrollerG. Theyieldinglymounted boxes carrying the rollers H, H', permit a heavier or lighter bunch of cotton to pass between them andthe ginning roller G, but will prevent any seed from passing the same way.

It is well known that a Hock of cotton is thickest at the middle and thinnest at the ends, one of the ends carrying the seed to be removed. Now, by the arrangement of the rollers H and H', the cotton passing between the said rollers by the drum is engaged by IOO IIO

With this machine, upland cotton can read ily be ginned, as the seed cannot pass between the roller H and ginning roller G, without being removed from the staple.

Having thus fully describedY my invention,

I clairn as new and desire to secure by Lettersv Patent- 1. A roller cotton gin provided with a drum, a knife roller held in peripheral contact with the said drum and journaled in a bearing composed of sections arranged one alongside the other throughout the contact length of the said roller with the said drum, and a spring for each bearing section to hold the latter in contact with its part of the roller, substantially as shown and described.

2. A roller cotton gin comprising a drum and two rollers located one in front of the other and held in peripheral contact with the said drum throughout the width of the saine, one of the said rollers serving as a knife roller to separate the seed from the lint, while the other roller holds the lint at its thickest part to the drum during the time the seed is removed by the first roller, substantially as shown and described.

3. A roller cotton gin comprising a drum, a knife roller held in peripheral contact with the said drum, a bearing for the said roller and extending throughout the length of the same, the said bearing comprising bearing sections, and a bar in which the said sections are independently and yieldingly mounted,Y

substantially as shown and described.

4. A roller cotton gin comprising a drum, a knife roller held in peripheral contact with the said drum, a bearing for the said roller and extending throughout the length of the same, the said bearing comprising bearing sections, a bar in which the said sections are independently and yieldingly mounted, and a spring for each independent bearing section to hold the latter to its part of the roller, substantially as shown and described.

5. A roller cotton gin comprising a drum, a knife roller held in peripheral contact with the said drum, a bearing for the said roller and extending throughout the length of the same, the said bearing comprising Vbearing sections, a barin which the said sections are independently and yieldingly mounted, and means, substantially as described, for yieldingly supporting the said bar, as set forth.

6. A roller cotton gin comprising a drum, a knife roller held in peripheral contact with the said drum, a bearing for the said roller and extending throughout the length ofv the same, the said bearing comprising bearing sections, a bar in which the said sections are independently and yieldingly mounted, means, substantially as described, for yleldingly supporting the said bar, and means for revolving the said roller at a higher rate of speed than .the said drum, substantially as shown and described.

7. A roller cotton gin, comprising a drum having an elastic covering, a knife roller held in peripheral contact with the said drum, yielding bearing sections engaging the said roller, a second roller held in frictional contact with the said drum below the said first named knife roller, and yielding bearing sections for the said second roller, substantially as shown and described.

8. A roller cotton gin comprising a hopper, a feed roller for carrying the cotton from the said hopper, feed tables onto which discharges the said feed drum, a ginning drum having an elastic covering and onto which discharge the said feed tables, a knife roller in frictional contact with the said elastic covering, a second roller in peripheral contact with the said ginning drum and arranged below the first named knife roller, and yielding bearings for the said rollers, substantially as shown and described.

9. A roller cotton gin comprising a hopper, a feed roller for carrying the cotton from the said hopper, feed tables onto which discharges the said feed drum, a ginning drum having an elastic covering and onto which discharge the said feed tables, a knife roller in frictional vcontact with the said elastic covering, a second roller in peripheral contact with the said ginning drum and arranged below the first named knife roller, yielding bearings for the said roller, and aV stripping cylinder acting as a brush and provided with transversely-extending kand radially-arranged blades made of steel or other metal and extending with their outer edges close to the periphery of the said ginning drum, `substantially as shown and described. v

FREDERICK L. MONTGOMERY.

Vitn esses:

THEO. G. Hos'rER, C. SEDewIoK.

IOO

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